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Recent Posts by Tyler Coen

Only Enable (Turn On) Gases That You Will Actually Use on a Dive

August 2, 2016

Only Enable (Turn On) Gases That You Will Actually Use on a Dive

My dive computer said the 20ft stop was supposed to take 4 minutes, but it actually took 10 minutes to clear. What went wrong? The answer is almost always that a more oxygen rich gas was enabled (turned on), but never actually used on the dive.

Factors Affecting Battery Life on Shearwater Dive Computers

February 23, 2016

Factors Affecting Battery Life on Shearwater Dive Computers

The factors that affect battery life on the Shearwater Perdix and Petrel dive computers are, in order of most to least significant:

  • Battery Type
  • Display Brightness
  • Model
  • Temperature

Battery Type

The most significant []

Shearwater and the CNS Oxygen Clock

March 23, 2015

Shearwater and the CNS Oxygen Clock

The question of what CNS oxygen exposure is safe can spark heated debate among technical divers. This reflects the seriousness of CNS oxygen toxicity when diving. This blog post sidesteps that debate, and focuses solely []

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